libpfm_intel_icx_unc_iio(3) — Linux manual page

NAME \| SYNOPSIS \| DESCRIPTION \| MODIFIERS \| AUTHORS \| COLOPHON

LIBPFM(3)               Linux Programmer's Manual              LIBPFM(3)

NAME top

       libpfm_intel_icx_unc_iio - support for Intel IcelakeX Server IIO
       uncore PMU

SYNOPSIS top

       #include <perfmon/pfmlib.h>

       PMU name: icx_unc_iio[0-5]
       PMU desc: Intel IcelakeX IIO uncore PMU

DESCRIPTION top

       The library supports the Intel IcelakeX IIO (I/O controller)
       uncore PMU.  Each IIO PMU implements 4 generic counters and free
       running counters (not yet supported by libpfm4).  The current
       version of libpfm4 does not expose the fc_mask and ch_mask filter
       because these are hardcoded in the events provided by the
       library.

MODIFIERS top

       The following modifiers are supported on Intel IcelakeX IIO
       uncore PMU:

       e      Enable edge detection, i.e., count only when there is a
              state transition from no occurrence of the event to at
              least one occurrence. This modifier must be combined with
              a threshold modifier (t) with a value greater or equal to
              one.  This is a boolean modifier.

       t      Set the threshold value. When set to a non-zero value, the
              counter counts the number of IIO clockticks in which the
              number of occurrences of the event is greater or equal to
              the threshold.  This is an integer modifier with values in
              the range [0:255].

       i      Invert the threshold (t) test from strictly greater than
              to less or equal to. This is a boolean modifier.

AUTHORS top

       Stephane Eranian <eranian@gmail.com>

COLOPHON top

       This page is part of the perfmon2 (a performance monitoring
       library) project.  Information about the project can be found at
       ⟨http://perfmon2.sourceforge.net/⟩.  If you have a bug report for
       this manual page, send it to
       perfmon2-devel@lists.sourceforge.net.  This page was obtained
       from the project's upstream Git repository
       ⟨git://git.code.sf.net/p/perfmon2/libpfm4 perfmon2-libpfm4⟩ on
       2024-06-14.  (At that time, the date of the most recent commit
       that was found in the repository was 2024-04-24.)  If you
       discover any rendering problems in this HTML version of the page,
       or you believe there is a better or more up-to-date source for
       the page, or you have corrections or improvements to the
       information in this COLOPHON (which is not part of the original
       manual page), send a mail to man-pages@man7.org

                             November, 2023                    LIBPFM(3)